Staring At Backgrounds Tab

this wierd i was trying to make my own song and accidently played this then later 
out it sounded exactly like the song

e--------2-0---------------2-0---------------------------|
b--2-0----------2-0--2-0---------------------------------|
g--------------------------------------------------------|
d--------------------------------------------------------|
a--------------------------------------------------------|
e--------------------------------------------------------|


not so sure about after that this sounds ok

e-----------------------------------------------------------------------|
b-----------------------------------------------------------------------|
g-----------------------------------------------------------------------|
d-xxx--2--xxx--2--xxxx-xxx--2--xxx-2-xxx--------------------------------|
a-xxx--2--xxx--2--xxxx-xxx--2--xxx-2-xxx--------------------------------|
e-xxx--2--xxx--2--xxxx-xxx--2--xxx-2-xxx--------------------------------|

then intro again

then
() means quickly strum (xx)
e---------------------------------2x-------------------------------------------------|
b---------------------------------2x---(mute quickly)--------------------------------|
g---------------------------------2x-------------------------------------------------|
d--x-x-x--2---(xx)--x-x-x--2---------------------------------------------------------|
a--x-x-x--2---(xx)--x-x-x--2---------------------------------------------------------|
e--x-x-x--2---(xx)--x-x-x--2---------------------------------------------------------|